Builders in New Malden for Extensions, Lofts & Refurbishment
Design and build for homes and commercial premises in New Malden, KT3. One team and one point of contact from the first drawing to handover.

Building work in New Malden
London Design & Construction designs and builds extensions, loft conversions and refurbishments in New Malden. Homes here are mostly inter-war semi-detached and terraced houses, with larger detached houses on the Coombe side, and most of the work we are asked for is hip-to-gable loft conversions and single storey rear extensions to inter-war semis.
Most of New Malden lies outside conservation areas, so many rear extensions and loft conversions to houses can be built under permitted development rights. Planning applications and building control are handled by the Royal Borough of Kingston upon Thames.
The hipped roofs on New Malden semis suit a hip-to-gable conversion with a rear dormer, which usually fits within the 50 cubic metre permitted development allowance.
New Malden at a glance
- PostcodeKT3
- CouncilThe Royal Borough of Kingston upon Thames
- LandmarksNew Malden High Street, Beverley Park and Coombe
- Nearest areasKingston upon Thames, Surbiton and Wimbledon
Our services in New Malden

Extensions
Rear, side and wraparound extensions, from footings and steels to glazing.

Loft Conversions
Dormer and hip-to-gable lofts with new stairs and shower rooms.

General Building
Full refurbishments, structural openings, panelling and period restoration.

Design Services
Layouts and drawings worked out with you before anything is built.

Plumbing
Bathrooms, heating and underfloor heating fitted as part of the build.

Electrics
Rewires, feature lighting and new circuits for every room we build.

Roofing
Flat roofs, dormers, tiling and rooflights.
- 01Design
- 02Structure
- 03Trades
- 04Handover
Full Project Delivery
One programme and one contact from drawings to keys.

Commercial Construction
Commercial fit-outs, hospitality interiors and office and retail refurbishment.
Frequently asked questions
Which parts of New Malden do you cover?
We cover the whole of New Malden (KT3), including the streets around New Malden High Street and Beverley Park. We also work in Kingston upon Thames, Surbiton and Wimbledon, all within 4 km.
Do I need planning permission for an extension or loft conversion in New Malden?
Often not. Most houses in New Malden are outside conservation areas, so a single storey rear extension or a loft conversion within the volume limits can usually be built under permitted development, and a lawful development certificate from the Royal Borough of Kingston upon Thames confirms it. Flats and maisonettes always need a planning application.
What kind of building work do you carry out in New Malden?
Most of the work in New Malden is hip-to-gable loft conversions and single storey rear extensions to inter-war semis. The typical properties are inter-war semi-detached and terraced houses, with larger detached houses on the Coombe side. Each project has one point of contact, with design, structure, plumbing, electrics and roofing carried out by our own team.
Which council deals with planning and building control in New Malden?
The Royal Borough of Kingston upon Thames. Where a project needs a planning application or a lawful development certificate, the drawings are prepared before work starts, and building control inspections are arranged at each stage of the build.
Can I see examples of your work near New Malden?
Our project diaries show a rear extension to a London stock brick terrace and the refurbishment of a period flat, each photographed at every stage, along with a detached house extension in Bookham, about 16 km from New Malden.
Areas near New Malden
The six nearest areas we cover, closest first.
Planning building work in New Malden?
Discuss your project
Send a few details about the work and we will arrange a call or a site visit, with drawings and a clear quote to follow.